Apparatus for water purification.



No. 858, 183. PATENTEDJUNE 25, 1907.

A. HOLLE. APPARATUS FOR WATER PURIFICATION.

APPLICATION FILED OUT. 20, 1906.

AUGUST HOLLE, OF DUSSELDORF, GERMANY.

APPARATUS FOR WATER PURIFICATION.

Specification of Letters Patent.

Patented June 25, 1907.

Application filed October 20, 1906. Serial N0- 339,737-

.l'o all whom it may concern:

Be it known that I, AUGUST HoLLE, a citizen of Germany, residing at Dusseldorf, Germany, have invented newand useful Improvements in Apparatus for Water Purification, of which the following is a specification.

My invention relates to an apparatus for the oxidation of fluid, the removal of the precipitate obtained thereby and more particularly the elimination of ferru inous matter contained in such fluid, and t e object of of any oxidable matter contained in such fluid.

The apparatus is more articularly de-.

signed for the purification 0 Water, such as well Water, river water and sea water, by oxidizing the iron salts or other salt-s usually contained therein. As the oxide thus produced are insoluble in water, they may be readily'filtered ofl, and a pure and clean filtrate thus be obtained.

The drawing herewith shows several forms of my apparatus in four vertical sections, each illustrating a different arrangement of the afore-mentioned sprayer and screen as well as a different disposal of the admission conduits of the air or oxygen, the description of each figure a pearing below.

In a tank a t ere is provided a sprayer I) provided with densely disposed, fine perforations, and a screen 8 in face of the said perforations. -The said sprayer is secured to the orifice of a vertically entering feed pipe (Z through which the fluid intended for treatment may be forced in, preferably under pneumatic or other suitable pressure. The said sprayer may be given any suitable form, the said screen being shaped to correspond with the sha e of the sprayer in such way that the flui forced into the sprayer is directed against the screen in an approximate right angle.

In the drawing herewith the form illustrated in Figure 1 shows a sprayer in the shape of a rose-head and the screen 8 is at some distance placed horizontally beneath the former as a flat disk; in Fig. 2 the said sprayer is ofspherical shape, provided with fine perforations on the whole surface and accordingly the screen 8 is a corresponding spherical mantle of correspondingly larger diameter inclosing the said ball sprayer concentrically so that the fluid forced radially through the sprayer meets all around the perforated wall of the mantle; in Fig. 3 the sprayer is cylindric and so is the screen .9 around it and in Fig. 4 the sprayer is a cone surrounded by another conical structure of correspondingly larger size.

The orifices for the admission of air or oxygen or atmospheric air to which additional oxygen has been mixed may be disposed in any suitable place or places. I prefer the arrangement shown in Fig. 1 where the gas admitting pipe is in the bottom of the tank there being mounted on and secure to the orifice a rose-head 76 similar to that of the sprayer afore-Inentioned through which the as may be blownso as to move against and into the aforesaid mist. The gas may, however, be admitted direct through an orifice or orifices in the side of the tank in which case it is preferable toplace another perforated device or screen between such orifice and the screen 8, as shown in Figs. 2, 3, 4. In Fig. 2 there are shown a pair of pipe arms f, 9, one entering above, the other beneath the centerline of the spherical screen 8 into an annular com artment h, h with a perforated wall is, fr arched concentric with the spherical bodies b and s and embracing the latter at some distance. In Fig. 3 the oxygen or air is blown through an orifice Zin the side of the tank opening into a perforated cylinder m inclosing the cylinder 8. oxygen is admitted beneath the conic screen '8 through an elbow p into an annular compartment n with a perforated wall 0 corresponding and concentric with the conical screen 8.

The best way of using the apparatus is as above indicated. The fluid intended to be operated upon may be forced under pressure into the sprayer b from whichit radiates in In Fig. 4 the air or fine jets against the screen 8 being in passingthe same further atomized forming a mist; the air, preferably mixed with additional oxygen, is blown in and mixes with the mist, thereby coming in close touch with the said atomic particles, the result being a perfect oxidation of any oxidable substance and elimination of ferruginous matter.

A partial oxidation may be accomplished by forcing the fluid through by means of pneumatic pressure, the air forced in doing already a good deal of oxidizing work.

The invention may be employed, for example, for the oxidation of iron compounds contained in water. These compounds are generally dissolved in water in the form of iron protoxid bicarbonates, and are changed b the oxidation into iron-protoxidoxids. T e latter being insoluble in water, may be readily filtered off, such removal of the iron being frequently necessary before the water can be utilized in the arts.

What I claim as my invention and desire to protect by Letters Patent is:

1. An apparatus of the kind referred to comprising the combination of a tank, a hollow body provided with densely disposed, fine perforations, a fluid su ply pipe opening into the said perforated bo y, a screen placed in face of the perforations of the said body in such way that the fluid forced in through the said supply-pipe is thrown against it at an approximate right angle, and admission orifices ada ted to conduct any air blown therethroug 1- against the said screen, substantially as described.

2. In an apparatus of the kind referred to a rose-head provided with densely disposed, fine perforations secured to and vertically suspended from the end of a fluid supply pipe, and a horizontal screen beneath the said rosehead and facing the perforations therein, substantially as described.

3. In an apparatus of the kind referred to the combination of a rose-head provided with densely disposed, fine perforations secured to and vertically suspended from the end of a fluid supply pipe, a horizontal screen beneath the said rose-head and facing the perforations therein, and another rose-head,

1n the bottom of the apparatus, secured to the end of a gas supply plpe, the said second rose head facing the said screen, substantially as described. 7

'4. In a device of the character described, a screen, combined with a liquid sprayer, and an opposed gas discharge nozzle arranged at opposlte sides of the screen, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

AUGUST HOLLE.

Witnesses:

ALFRED POHLMEYER, M. ENGELS. 

